b) change the length of the wires between transmission towers
c) not use a transformer at all
d) change the type of conducting material
e) use a step down transformer
ans d) change the type of conducting matey
For long-distance transmission of power, in order to reduce losses in the wires by driving a low current at high voltage, we should use a step-up transformer (a) .
(That's at the beginning, to step-up the voltage for long-distance transmission. And then use a step-down transformer at the end, to reduce the voltage just before we pour it into the customer's house.)
Answer:
2.7N
Explanation:
B. It will decrease her terminal velocity.
C. It will reduce her terminal velocity to zero.
D. It will change the direction of her terminal velocity.
A parachute decreases the terminal velocity of a skydiver by increasing air resistance.
A parachute decreases the terminal velocity of a skydiver.
Terminal velocity is the maximum velocity an object can reach while falling through a fluid, such as air. When a skydiver jumps out of a plane, initially they accelerate due to the force of gravity. As they gain speed, the air resistance or drag force acting against them increases. Eventually, the drag force becomes equal in magnitude to the force of gravity, causing the skydiver to reach a constant velocity - the terminal velocity.
When a parachute is deployed, it increases the surface area that is exposed to air resistance. This creates a larger drag force, which slows down the motion of the skydiver. As a result, the skydiver's terminal velocity decreases, allowing them to descend more slowly and safely to the ground.
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Answer:
the density of ordinary (baryonic) matter in the universe
Explanation:
Deuterium detection is of interest because the amount of it may be related to the amount of dark matter in the universe, but precise measurements have been difficult to obtain. Due to the way in which deuterium was created in the Big Bang, an exact measurement of the amount of deuterium would allow scientists to set limits on the models of the great explosion.
Also, an exact measure of deuterium would be an indicator of the cosmic density of barions (ordinary matter), and that density of barions would indicate whether ordinary matter is dark and is found in regions such as black holes, gas clouds or brown dwarfs, or it is bright and can be found in the stars. This information will help scientists who try to understand the very beginning of our universe.